The significance of ultrasound 3D examination in diagnosing foetal birth defects
Authors:
P. Polák; A. Skřivánek; S. Huspeninová
Authors‘ workplace:
Prenatální diagnostika, genetická poradna, Olomouc
1; PREDIKO s. r. o., Zlín
1,3; G-centrum, Olomouc
2
Published in:
Prakt Gyn 2007; 11(5): 212-215
Overview
Three-dimensional ultrasound (3D US) enlarges considerably possibilities of prenatal diagnosis of fetal birth defects. This method enables the multiplanar analysis of fetal structures from three orthogonal planes. 3D US is essential for valid assesment of some fetal organs – ultrasound minor-markers respectively – in first trimester of pregnancy – between 11 – 14th week of gestation. There are nuchal translucency (NT), observation and measurement of nasal bone (NB), assesment of frontomaxillar angle above all. The estimation of some dysmorphological parameters is more accurate in second trimester of pregnancy as well. Rendering mode is sovereign diagnostic tool for orofacial clefts, limb anomalies, atypies of external genitalia etc. On the other hand the contrast mode can better describe skeletal dysplasias and neural tube defects – spina bifida, hemivertebra i.e.
Three-dimensional ultrasound provides important complement in algorithm of prenatal detection of chromosomal aberrations and some of severe genetic syndromes.
Key words:
prenatal diagnosis – screening - three-dimensional ultrasound – birth defects
Sources
1. Hull AD, James G, Salerno C et al. Three-dimensional ultrasound and the assessment of the first trimester fetus. J Ultrasound Med 2001; 20(4): 287-293.
2. Jackson D, Laymon N. Relationship of three-dimensional volume decrease to two-dimensional linear shortening in pathologic fetal femur length. Ultrasound Obstet Gynecol 2005; 26: 337.
3. Lee W, Blanckaert K, Bronsteen RA et al. Fetal ilias angle measurements by three-dimensional ultrasonography. Ultrasound in Obstetrics and Gynecology 2001; 18(2): 150-154.
4. Dyson RL, Pretorius DH, Budorick NE et al. Three-dimensional ultrasound in the evaluation of fetal anomalies. Ultrasound Obstet Gynecol 2000; 16: 321-328.
5. Benacerraf B, Shipp T, Bromley B. 3D is an essential tool in gynecological imaging. Ultrasound Obstet Gynecol 2005; 26: 314.
Labels
Paediatric gynaecology Gynaecology and obstetrics Reproduction medicineArticle was published in
Practical Gynecology
2007 Issue 5
Most read in this issue
- The significance of ultrasound 3D examination in diagnosing foetal birth defects
- Differential diagnosis and therapy of recurrent pregnancy loss – part 2
- Detection of Chlamydia trachomatis antigens by the Clearview Chlamydia test
- Microwawe radiometry and the breast disease - introducing the new diagnostic method into practice?